Light Waves I - SS3 Physics Past Questions and Answers - page 2
11
Waves from which of the following regions of the electromagnetic spectrum is used for medical imagingÂ
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A
Infrared radiation
B
Microwaves
C
X-rays
D
Gamma rays
12
The region with the longest wavelength of the electromagnetic spectrum is
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A
Gamma rays
B
X-rays
C
Ultraviolet radiation
D
Radio waves
13
What is visible light and why is it unique?
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14
How is the electromagnetic spectrum divided?
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15
Light has the following behaviours except
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A
Refraction
B
Diffraction
C
Penetration
D
Reflection
16
The understanding of the behaviours of light has practical applications in all except
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A
Optics
B
Mechanical engineering
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C
Astronomy
D
Medicine
17
Reflection of light occurs when ________
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A
light waves bounce off a surface and pass through it
B
light waves bounce off a surface and change direction
C
light waves bounce off a surface and stop propagation
D
light waves bounce off a surface and heat up the surface
18
Refraction of light occurs when ________
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A
light waves pass through the surface of a medium
B
light waves pass through an intersection of air and space
C
light waves pass through a boundary between two different mediums
D
light waves pass through a camera lens and form an image
19
Diffraction of light occurs when ________
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A
light waves bend around a filter
B
light waves bend through an obstacle
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C
light waves bend an obstacle
D
light waves bend around an obstacle
20
What effect does refraction have on a light wave travelling through two mediums?
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